taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
070/Ellis
070-905/Ferris ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 49,021,749 0.9991 49,065,908 15 1,028 .017029199
A 43,269,472 0.9493 45,580,398 15 506 .013039881
A 45,800,700 0.9567 47,873,628 15 367 .018968649
A 48,308,520 0.9406 51,359,260 15 258 .010409829
E 49,011,227 0.9184 53,365,883 14 582 .004440164
F1 4,210,630 0.9047 4,654,173 8 51 .008183017
F1 4,540,460 0.8764 5,180,808 6 22 .005438699
F1 4,177,450 0.8467 4,933,802 4 10 .029879717
F1 4,039,750 1.0173 3,971,051 2 3 .000093323
Random Totals: 252,379,958   265,984,911 94 2,827  
Catg J Exception Values: 11,526,560   12,745,457      
Catg D1 Exception Values: 8,638,734   6,643,704      
Total Test Values (4): 272,545,252   285,374,072      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 14,268,704

Confidence Interval Values (5)

State Lower Limit: 271,105,368 (State Test Value minus Margin of Error Percent)
Local Test Value: 272,545,252 (Within Confidence Interval)
State Upper Limit: 299,642,776 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 296,674,418 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories